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David Glenn Smith, 49, received a sentence of no more than four years in prison as part of a plea deal.

The court heard emotional statements from the mothers of some of Smith's young victims. KCCI is not identifying those who spoke in court Friday so the victims are also not identified.

One of the mothers told Smith, "May you suffer the most severe consequences for your actions. Unfortunately, four years is not enough for what you've done. Your lawyer has found a loophole in the system, may you rot in hell."

Smith sat expressionless during the sentencing.

"You've affected hundreds of people with all of the children you've chosen to afflict with your perverted sickness," said a mother of a victim.

Smith abused as many as nine children from 2008 to June 2012. He would put a child on his lap, place his hand underneath and touch their private parts.

"It's affected her emotionally and everything. She takes numerous showers. She's so shy she doesn't want to talk about anything," said a mother of a victim.

A mom said her daughter, now 11, was sexually assaulted when she was 8.

"Living in fear, living with anxiety, learning to retrust -- not normal for an 8-year-old girl," said the mother.

Smith did not make a statement before he was taken into custody.

Investigators said Smith's wife was not involved in the abuse and will not face charges in connection with the case.